Anvil ring of vertical shaft impact crusher

Abstract

The invention relates to an anvil ring of a vertical shaft impact crusher, and relates to the technical field of crusher equipment, the anvil ring comprises an anvil ring seat, an anvil ring cover and an anvil ring body, the anvil ring seat comprises a bottom ring and a side ring, the side ring is fixedly connected to the upper surface of the bottom ring, and the anvil ring body is fixedly installed on the bottom ring and located on the inner side of the side ring; the anvil ring cover is fixedly installed on the top of the anvil ring body, the anvil ring body comprises a plurality of layer rings, all the layer rings are sequentially stacked in the vertical direction, and between every two adjacent layer rings, the upper surface of the layer ring located on the lower portion is attached to and abuts against the lower surface of the layer ring located on the upper portion. The anvil ring has the advantages that the material loss and replacement cost of the anvil ring are reduced, and the maintenance efficiency of the anvil ring is improved.

Description

Technical Field

[0001] The present application relates to the technical field of crusher equipment, and in particular to an anvil ring of a vertical shaft impact crusher. Background Art

[0002] Vertical shaft impact crushers are divided into two types: "stone-hitting-stone" and "stone-hitting-iron". The "stone-hitting-iron" type is achieved by configuring an anvil ring in the crusher. When working, the stone in the crusher is accelerated by the rotor and thrown out by centrifugal force, hitting the inside of the anvil ring and rebounding. The effect of crushing the stone is achieved through multiple impacts on the anvil ring and collisions between stones. The "stone-hitting-iron" type crusher has the advantage of high stone crushing efficiency.

[0003] However, traditional anvil rings are mostly integral wear-resistant parts. The inner side of the anvil ring is in the middle of the vertical direction, where the impact frequency of stones is the highest, and the impact wear is the most serious. The wear degree of the upper and lower ends of the inner side of the anvil ring is relatively low. This uneven wear causes the anvil ring material utilization rate to be less than 50%, which requires replacement, high replacement cost, and significant waste. In addition, the anvil ring is heavy and requires lifting equipment when replaced, which has low maintenance efficiency and high cost. Summary of the invention

[0004] In order to reduce the material loss and replacement cost of the anvil ring and improve the maintenance efficiency of the anvil ring, the present application provides an anvil ring for a vertical shaft impact crusher.

[0005] The anvil ring of a vertical shaft impact crusher provided in this application adopts the following technical solution: A vertical shaft impact crusher anvil ring comprises an anvil ring seat, an anvil ring cover and an anvil ring body, the anvil ring seat comprises a bottom ring and a side ring, the side ring is fixedly connected to the upper surface of the bottom ring, the anvil ring body is fixedly mounted on the bottom ring and located on the inner side of the side ring, the anvil ring cover is fixedly mounted on the top of the anvil ring body, the anvil ring body comprises a plurality of layer rings, all of the layer rings are stacked in sequence in a vertical direction, and between two adjacent layer rings, the upper surface of the layer ring located below is in contact with and abuts against the lower surface of the layer ring located above.

[0006] By adopting the above technical solution, the anvil ring body is layered in the vertical direction, and the anvil ring seat and the anvil ring cover provide support and restraint for the anvil ring body. Since the anvil ring is most severely worn in the middle part, while the upper and lower layers are less worn, in this application, the anvil ring body allows the layer ring with severe wear in the middle to be replaced separately without having to scrap the entire body, thereby significantly reducing material loss and replacement costs. In addition, the weight of a single-layer layer ring is greatly reduced compared to a traditional integral anvil ring, so that the replacement operation does not need to rely on lifting equipment, improving maintenance efficiency and reducing operating costs.

[0007] Preferably, the layer ring comprises a plurality of anvil ring blocks arranged in sequence along the circumferential direction, and in each of the layer rings, the anvil ring blocks located at the same circumferential position are aligned in the vertical direction, and the vertically aligned anvil ring blocks together form a longitudinally continuous wear-resistant unit.

[0008] By adopting the above technical solution, each layer of ring is divided into several anvil ring blocks arranged along the circumference, and the upper and lower layers of anvil ring blocks are aligned longitudinally, achieving two optimizations: First, when the inner side of the anvil ring body is worn at a local position on the circumference, the anvil ring block at that position can be directly replaced (such as a single block, a single row, or multiple rows) without replacing the entire layer of rings, thereby further reducing material loss. The weight of a single anvil ring block is further reduced, and no lifting equipment is required for replacement, and manual operation can be performed, greatly improving maintenance efficiency. In addition, the longitudinally aligned anvil ring blocks form a continuous force-bearing structure to ensure that the overall performance is not affected after local replacement.

[0009] Preferably, an insert is inserted between adjacent wear-resistant units; the side wall of the wear-resistant unit facing one of the adjacent inserts is a first side wall, and the first side wall is in contact with and abuts against one of the adjacent inserts; the side wall of the wear-resistant unit facing the other adjacent insert is a second side wall, and the second side wall is in contact with and abuts against the other adjacent insert.

[0010] By adopting the above technical solution, inserts are used to fill the assembly gap between adjacent wear-resistant units, reducing the vibration of the anvil ring block caused by stone impact. The double fit of the first side wall and the second side wall with the insert forms a stable force transmission path, so that adjacent wear-resistant units maintain synchronous force transmission under impact load. The insert acts as an isolation medium to completely block direct contact between adjacent wear-resistant units (anvil ring blocks), thereby increasing the service life of the anvil ring block.

[0011] Preferably, a plurality of positioning pins are vertically arranged between the anvil ring cover and the bottom ring, the positioning pins correspond one-to-one to the wear-resistant units, all anvil ring blocks in the wear-resistant units have pin holes coaxially provided in the vertical direction, the positioning pins penetrate the pin holes of all anvil ring blocks in the corresponding wear-resistant units, and fit with the inner walls of each pin hole.

[0012] By adopting the above technical solution, each wear-resistant unit is fixed by an independent positioning pin, ensuring the coaxiality of the pin holes of all anvil ring blocks in the same wear-resistant unit, and all anvil ring blocks form an axial rigid connection, which can withstand impact loads without relative displacement. The positioning pin connects the anvil ring cover, the wear-resistant unit and the bottom ring as a whole to ensure the positioning of the wear-resistant unit on the anvil ring seat. When replacing a single anvil ring block, the positioning pin can be used as a guide reference to ensure the alignment of the new block.

[0013] Preferably, the anvil ring cover is evenly divided into a number of sub-plates in the circumferential direction, the number of the sub-plates is half the number of the wear-resistant units, each of the sub-plates covers two adjacent groups of wear-resistant units, and the lower surface of the sub-plate is in contact with and abuts against the upper surfaces of the two adjacent groups of wear-resistant units; the bottom of the locating pin is fixedly connected to the bottom ring, the top of the locating pin passes through the corresponding sub-plate, and is threadedly connected with a nut, which presses the upper surface of the sub-plate.

[0014] By adopting the above technical solution, the number of split plates is set to half the number of wear-resistant units, so that each split plate covers two sets of adjacent wear-resistant units, and is locked with positioning pins and nuts. When it is necessary to replace a partially worn wear-resistant unit (or an anvil ring block in a wear-resistant unit), only the corresponding single split plate needs to be removed to expose the two sets of wear-resistant units, without removing the entire anvil ring cover, thereby reducing the maintenance workload; secondly, the split plate can be removed by only loosening two nuts; the two sets of wear-resistant units are interrelated, thereby improving the integrity between adjacent wear-resistant units.

[0015] Preferably, the anvil ring cover is an integrally formed annular plate body, the top of the locating pin passes through the anvil ring cover, the top of the locating pin is integrally formed with a limiting screw head, the limiting screw head presses the upper surface of the anvil ring cover, the bottom ring is provided with an internal threaded hole corresponding to each locating pin, and the bottom of the locating pin is threadedly connected to the internal threaded hole.

[0016] By adopting the above technical solution, the two ends of the locating pin are rigidly connected to the integral anvil ring cover and the integral bottom ring respectively to form a closed-loop force frame, thereby improving the coordination of each wear-resistant unit and optimizing the assembly reliability.

[0017] Preferably, the first side wall and the second side wall of the anvil ring block are parallel to each other.

[0018] By adopting the above technical solution, since the first side wall and the second side wall are parallel to each other, when replacing a certain wear-resistant unit or an anvil ring block in a certain wear-resistant unit, it is only necessary to remove the positioning pin 5 corresponding to the wear-resistant unit, and then the anvil ring block can be directly pulled out along the radial direction of the anvil ring body, thereby eliminating the need to open the anvil ring cover, thereby facilitating quick replacement of the anvil ring block.

[0019] Preferably, a plurality of pre-installed plates are provided on the inner side wall of the side ring along the circumferential direction, and the pre-installed plates correspond to the wear-resistant units one by one; a protrusion is fixedly provided on the side of the pre-installed plate away from the side ring, and a groove is vertically penetrated on the side of the anvil ring block close to the side ring, and the protrusion extends into the grooves of all anvil ring blocks in the corresponding wear-resistant unit, and the opposite side walls on the protrusion and the opposite side walls on the groove are parallel to the first side wall; embedding grooves are vertically penetrated on the opposite side walls on the groove, and inserts are fixedly provided on the opposite side walls on the protrusion, and the inserts extend into the embedding grooves and abut against the inner walls of the embedding grooves.

[0020] By adopting the above technical scheme, when installing the anvil ring block (or replacing a large number of anvil ring blocks), the anvil ring cover is removed (the positioning pin is not on the bottom ring), and the anvil ring block is slid in the vertical direction so that the groove is vertically sleeved onto the protrusion, and at the same time, the embedding groove is vertically sleeved onto the insert, so that the protrusion and the groove, and the insert and the embedding groove are matched quickly and easily; since the opposite side walls on the groove and the opposite side walls on the protrusion are parallel to the first side wall, the groove and the protrusion do not affect the direct withdrawal of the anvil ring block in the radial direction of the anvil ring body; but since the insert and the embedding groove are arranged on parallel surfaces of the groove and the protrusion, and the insert extends into the embedding groove, when the insert is in the embedding groove, the anvil ring block cannot be directly withdrawn in the radial direction of the anvil ring body, which helps to prevent the anvil ring block from running when a large number of anvil ring blocks are installed.

[0021] Preferably, the insert includes a plurality of spring sheets arranged in sequence in the vertical direction, the spring sheets corresponding to the embedding grooves one by one, the spring sheets are bent with a protrusion extending into the embedding groove, the protrusion is provided with a group of inclined surfaces with opposite inclination directions, the notch edge of the embedding groove can abut against one of the inclined surfaces and drive the protrusion to deform in a direction away from the embedding groove, and the edge of the groove close to the side ring can abut against the other inclined surface and drive the protrusion to deform in a direction away from the embedding groove.

[0022] By adopting the above technical scheme, the spring piece has a deformable characteristic. When replacing a small number of anvil ring blocks, there is no need to open the anvil ring cover, remove the positioning pin corresponding to the severely worn anvil ring block, and then directly pull out the severely worn anvil ring block. In the process of pulling out the anvil ring block: the edge of the groove of the embedded groove contacts one of the inclined surfaces of the spring piece protrusion, forcing the protrusion to deform away from the embedded groove. The deformed protrusion no longer hinders the movement of the anvil ring block, allowing the spring piece to smoothly detach from the embedded groove; then push the new anvil ring block into the position of the original anvil ring block. In the process of pushing the anvil ring block in: the edge of the groove contacts the other inclined surface of the spring piece protrusion, forcing the protrusion to deform away from the embedded groove, allowing the anvil ring block to be smoothly inserted. After the anvil ring block moves into place, the protrusion on the spring piece automatically restores its deformation and contacts the embedded groove, which also helps to adjust the position of the anvil ring block.

[0023] Preferably, a connecting block is fixedly provided on one side of the pre-installed plate facing the side ring, a plug rod extending vertically downward is fixed to the bottom of the connecting block, a plurality of sockets are opened on the top of the side ring, the sockets correspond to each other one by one, the plug rod is inserted into the corresponding socket and fits with the inner wall of the socket.

[0024] By adopting the above technical solution, when replacing a large number of complete sets of wear-resistant units, the anvil ring block can be first installed on the pre-installed plate, and then the pre-installed plate and the anvil ring seat can be directly connected through the insertion rod and the socket, which is convenient for quickly replacing a large number of complete sets of wear-resistant units.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the anvil ring seat, anvil ring cover, anvil ring body, bottom ring, side ring and layer ring, the anvil ring body can be layered in the vertical direction, allowing the layer ring with severe wear in the middle to be replaced separately, reducing material loss and replacement costs. In addition, the single-layer layer ring is light in weight and can be replaced without lifting equipment, thereby improving maintenance efficiency; 2. By setting anvil ring blocks, wear-resistant units, inserts, positioning pins, pin holes, and split plates, the layer ring is further divided into anvil ring blocks. When local wear occurs, single blocks, single rows, or multiple rows of anvil ring blocks can be replaced to further reduce material loss. Inserts reduce the vibration of anvil ring blocks and increase their service life. Positioning pins ensure the positioning of anvil ring blocks and axial rigid connection. Split plates reduce the amount of maintenance work and improve the integrity of adjacent wear-resistant units. 3. By setting pre-installed plates, bumps, grooves, embedded grooves, inserts, protrusions, and inclined surfaces, when installing a large number of anvil ring blocks, the matching of bumps and grooves, inserts and embedded grooves can be quickly completed in the vertical direction to prevent the anvil ring block from moving; when replacing a small number of anvil ring blocks, the inclined surface of the spring projection can make the insert smoothly detach from or enter the embedded groove, which is convenient for direct removal or installation of the anvil ring block. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of an anvil ring of a vertical shaft impact crusher provided in Example 1 of the present application.

[0027] Figure 2 It is an exploded view of an anvil ring of a vertical shaft impact crusher provided in Example 1 of the present application.

[0028] Figure 3 It is a schematic diagram of the structure of a single anvil ring block in Example 1 of the present application.

[0029] Figure 4 It is a structural schematic diagram of an anvil ring of a vertical shaft impact crusher provided in Example 2 of the present application.

[0030] Figure 5 It is an exploded view of an anvil ring of a vertical shaft impact crusher provided in Example 2 of the present application.

[0031] Figure 6 yes Figure 5 Enlarged view of part A.

[0032] Figure 7 It is a schematic diagram of the assembly structure of the wear-resistant unit and the pre-installed plate provided in Example 2 of the present application.

[0033] Figure 8 yes Figure 7 Enlarged view of part A.

[0034] Explanation of the accompanying drawings: 1. anvil ring seat; 11. bottom ring; 12. side ring; 121. socket; 2. anvil ring cover; 21. split plate; 31. layer ring; 32. wear-resistant unit; 33. insert; 4. anvil ring block; 41. first side wall; 42. second side wall; 43. pin hole; 44. groove; 441. embedding groove; 5. positioning pin; 51. nut; 52. limiting screw head; 6. pre-installed plate; 61. bump; 62. insert; 621. protrusion; 622. inclined surface; 63. connecting block; 631. plug rod. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-8 This application is described in further detail.

[0036] Example 1 Embodiment 1 of the present application discloses an anvil ring of a vertical shaft impact crusher. Figure 1 , which includes an anvil ring seat 1, an anvil ring cover 2 and an anvil ring body. The anvil ring seat 1 is used to connect with the impact crusher when installing the integral anvil ring, and is also used to provide constraints and support for the anvil ring body. The anvil ring seat 1 includes a bottom ring 11 and a side ring 12. The bottom ring 11 is an annular plate, and the side ring 12 is an annular cylindrical tube. The axes of the bottom ring 11 and the side ring 12 coincide, and the side ring 12 is fixedly connected to the upper surface of the bottom ring 11.

[0037] Reference Figure 1 and Figure 2 The anvil ring body is used as the main body for bearing the impact of stones, and the inner wall of the anvil ring body is provided with a plurality of impact parts protruding inward. The anvil ring body is fixedly mounted on the bottom ring 11 and is located on the inner side of the side ring 12. The anvil ring cover 2 is fixedly mounted on the top of the anvil ring body, and the inner diameter of the anvil ring cover 2 is smaller than the inner diameter of the anvil ring body. The anvil ring cover 2 helps to prevent the stone from directly bouncing upward after hitting the anvil ring body. The anvil ring body includes a plurality of layer rings 31, and the layer rings 31 are preferably arranged in five to seven layers. In the present embodiment, the layer rings 31 have a total of five layers. All the layer rings 31 are stacked in sequence in the vertical direction. Between two adjacent layer rings 31, the upper surface of the layer ring 31 located below is in contact with and abuts against the lower surface of the layer ring 31 located above. The anvil ring body is layered in the vertical direction. The anvil ring body allows the layer ring 31 with severe wear in the middle to be replaced separately. Generally, only the 2-3 layers located in the middle of the vertical direction need to be replaced without the need to scrap the entire body.

[0038] In order to further reduce the material loss of the maintenance anvil ring, refer to Figure 1 and Figure 2The layer ring 31 includes a plurality of anvil ring blocks 4 arranged in sequence along the circumferential direction. In each layer ring 31, the anvil ring blocks 4 located at the same circumferential position are aligned in the vertical direction, and the vertically aligned anvil ring blocks 4 together form a longitudinally continuous wear-resistant unit 32. If the inner side of the anvil ring body is worn at a certain local position of the circumference, the anvil ring block 4 at this position can be directly replaced without replacing the entire layer ring 31, further reducing the material loss of the anvil ring body maintenance. All anvil ring blocks 4 are made of high chromium cast iron and have the same shape.

[0039] In order to reduce the vibration of the anvil ring block 4 and block the adjacent wear-resistant unit 32, refer to Figure 2 and Figure 3 , inserts 33 are inserted between adjacent wear-resistant units 32. The side wall of the wear-resistant unit 32 facing one of the adjacent inserts 33 is a first side wall 41, and the first side wall 41 is in contact with and abuts against one of the adjacent inserts 33. The side wall of the wear-resistant unit 32 facing another adjacent insert 33 is a second side wall 42, and the second side wall 42 is in contact with and abuts against another adjacent insert 33. In this embodiment, the insert 33 is a thin sheet of metal sheet arranged vertically. The insert 33 is used to fill the assembly gap between adjacent wear-resistant units 32, reduce the vibration of the anvil ring block 4 caused by the impact of stone, and act as an isolation medium to block the adjacent wear-resistant units 32.

[0040] In order to ensure the positioning accuracy and installation stability of the anvil ring block 4, refer to Figure 2 A plurality of positioning pins 5 are vertically arranged between the anvil ring cover 2 and the bottom ring 11, and the positioning pins 5 correspond to the wear-resistant units 32 one by one. All the anvil ring blocks 4 in the wear-resistant unit 32 are provided with pin holes 43 coaxially in the vertical direction, and the positioning pins 5 penetrate the pin holes 43 of all the anvil ring blocks 4 in the corresponding wear-resistant unit 32, and fit with the inner wall of each pin hole 43. On the one hand, the positioning pins 5 ensure the coaxiality of the pin holes 43 of all the anvil ring blocks 4 in the same wear-resistant unit 32, and on the other hand, connect the anvil ring cover 2, the wear-resistant unit 32 and the bottom ring 11 as a whole, so that the anvil ring block 4 will not be relatively displaced when subjected to impact load.

[0041] In order to reduce the amount of maintenance work, refer to Figure 2The anvil ring cover 2 is evenly divided into a number of sub-plates 21 in the circumferential direction, and the number of sub-plates 21 is half the number of wear-resistant units 32. Each of the sub-plates 21 covers two groups of adjacent wear-resistant units 32, and the lower surface of the sub-plate 21 is in contact with and abuts against the upper surfaces of the two adjacent groups of wear-resistant units 32. The bottom of the locating pin 5 is fixedly connected to the bottom ring 11. In this embodiment, a through hole for the locating pin 5 to pass through is provided on the sub-plate 21, and the top of the locating pin 5 sequentially passes through all the pin holes 43 in the corresponding wear-resistant unit 32 and the through hole on the sub-plate 21, and is threadedly connected with a nut 51, and the nut 51 is pressed against the upper surface of the sub-plate 21 through a washer. When it is necessary to replace a locally worn wear-resistant unit 32 or a certain anvil ring block 4, it is only necessary to unscrew a small amount of the nuts 51 and disassemble the corresponding single sub-plate 21 to expose the two groups of wear-resistant units 32, without removing the entire anvil ring cover 2, thereby reducing the maintenance workload.

[0042] The implementation principle of the anvil ring of a vertical shaft impact crusher in Example 1 of the present application is as follows: when the crusher is working, the stones thrown out by the rotor after acceleration hit the anvil ring body. The wear of the anvil ring body is mainly concentrated in the area that is frequently impacted (especially in the middle area of ​​the anvil ring body in the vertical direction). When the middle part of the anvil ring block 4 in the vertical direction is severely worn, the layer rings 31 of 2-3 layers with severe wear in the middle can be replaced separately without scrapping the entire anvil ring block 4. When the anvil ring block 4 is partially worn, it is only necessary to unscrew a small amount of nuts 51 corresponding to the severely worn anvil ring block 4 and remove the corresponding split plate 21 to expose the wear-resistant unit 32 to be maintained without removing the entire anvil ring cover 2, thereby reducing the maintenance workload, thereby achieving the purpose of reducing material loss and improving maintenance efficiency.

[0043] Example 2 The difference between Example 2 of the present application and Example 1 is that: Figure 4 , the anvil ring cover 2 is an integrally formed annular plate. A through hole for positioning is provided on the anvil ring cover 2. The top of the positioning pin 5 sequentially passes through all the pin holes 43 in the corresponding wear-resistant unit 32 and the through hole on the anvil ring cover 2, and a limiting screw head 52 is integrally formed. The limiting screw head 52 presses the upper surface of the anvil ring cover 2 through a gasket. An internal threaded hole corresponding to each positioning pin 5 is provided on the bottom ring 11, and the bottom of the positioning pin 5 is threadedly connected to the internal threaded hole. One end of the positioning pin 5 is rigidly connected to the overall anvil ring cover 2, and the other end is rigidly connected to the overall bottom ring 11 to form a closed-loop force frame.

[0044] In order to reduce the amount of maintenance work, refer to Figure 5The horizontal cross section of the insert 33 is triangular or V-shaped, and the horizontal cross section width of the insert 33 decreases from the side ring 12 to the center, and the first side wall 41 and the second side wall 42 of the anvil ring block 4 are parallel to each other. When replacing a certain wear-resistant unit 32 or an anvil ring block 4 in a certain wear-resistant unit 32, there is no need to open the anvil ring cover 2, and only the positioning pin 5 corresponding to the wear-resistant unit 32 needs to be removed, and then the anvil ring block 4 can be directly pulled out along the radial direction of the anvil ring body.

[0045] In order to prevent the anvil ring block 4 from running during installation, refer to Figure 5 and Figure 6 A plurality of pre-installed plates 6 are provided on the inner side wall of the side ring 12 along the circumferential direction, and the pre-installed plates 6 correspond to the wear-resistant units 32 one by one. A connection block 63 is fixedly provided on the side of the pre-installed plate 6 facing the side ring 12, and a plug rod 631 extending vertically downward is fixed to the bottom of the connection block 63. A socket 121 is provided on the top of the side ring 12, and the socket 121 corresponds to the plug rod 631 one by one. The plug rod 631 is inserted into the corresponding socket 121 and fits against the inner wall of the socket 121.

[0046] Reference Figure 7 and Figure 8 A protrusion 61 is fixedly provided on the side of the pre-installed plate 6 away from the side ring 12, and a groove 44 is provided on the side of the anvil ring block 4 close to the side ring 12 in the vertical direction, and the protrusion 61 extends into the grooves 44 of all the anvil ring blocks 4 in the wear-resistant unit 32. The opposite side walls on the protrusion 61 and the opposite side walls on the groove 44 are parallel to the first side wall 41. An embedding groove 441 is provided on the opposite side walls on the protrusion 61 in the vertical direction, and an insert 62 is fixedly provided on the opposite side walls on the groove 44, and the insert 62 extends into the embedding groove 441 and abuts against the inner wall of the embedding groove 441. Specifically, the insert 62 includes a plurality of spring sheets arranged in sequence in the vertical direction, and the spring sheets correspond to the embedding grooves 441 one by one, and the spring sheets are elastically deformable metal sheets bent in a horizontal plane. A plurality of mounting grooves for mounting springs are provided on opposite side walls of the projection 61. The springs are mounted in the mounting grooves. The thickness of the springs is less than or equal to the depth of the mounting grooves. One end of the springs in the horizontal direction is fixedly connected to the mounting groove, and the other end is not fixed.

[0047] Reference Figure 7 and Figure 8 The spring sheet is bent with a protrusion 621 extending out of the installation slot and into the embedded slot 441. The protrusion 621 is provided with a group of inclined surfaces 622 with opposite inclined directions. The edge of the slot opening of the embedded slot 441 can abut against one of the inclined surfaces 622, and drive the protrusion 621 to deform in a direction away from the embedded slot 441. The edge of the groove 44 close to the side ring 12 can abut against the other inclined surface 622, and drive the protrusion 621 to deform in a direction away from the embedded slot 441.

[0048] Reference Figure 7 and Figure 8 When replacing a small amount of anvil ring block 4, it is not necessary to open the anvil ring cover 2, remove the positioning pin 5 corresponding to the severely worn anvil ring block 4, and then directly pull out the severely worn anvil ring block 4. In the process of pulling out the anvil ring block 4, the edge of the notch of the embedded groove 441 contacts one of the inclined surfaces 622 of the spring piece protrusion 621, forcing the protrusion 621 to deform in a direction away from the embedded groove 441. The deformed protrusion 621 no longer hinders the movement of the anvil ring block 4, so that the spring piece can smoothly detach from the embedded groove 441. Then push the new anvil ring block 4 into the position of the original anvil ring block 4. In the process of pushing the anvil ring block 4 into place, the edge of the groove 44 close to the side ring 12 contacts the other inclined surface 622 of the spring piece protrusion 621, forcing the protrusion 621 to deform in a direction away from the embedded groove 441, so that the anvil ring block 4 can be smoothly inserted. After the anvil ring block 4 moves into place, the protrusion 621 on the spring piece automatically recovers its deformation and abuts against the embedded groove 441, which also helps to adjust the position of the anvil ring block 4.

[0049] The implementation principle of the anvil ring of a vertical shaft impact crusher in Example 2 of the present application is as follows: when a large number of complete sets of wear-resistant units 32 need to be replaced, the anvil ring block 4 can be pre-installed on the pre-installed plate 6, and then the wear-resistant unit 32 can be quickly replaced by cooperating with the plug rod 631 and the socket 121. The rigid connection structure formed by the positioning pin 5 and the integral anvil ring cover 2 and the bottom ring 11 improves the overall performance of the anvil ring.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vertical shaft impact crusher anvil ring, characterized in that: The invention comprises an anvil ring seat (1), an anvil ring cover (2) and an anvil ring body, wherein the anvil ring seat (1) comprises a bottom ring (11) and a side ring (12), wherein the side ring (12) is fixedly connected to the upper surface of the bottom ring (11), the anvil ring body is fixedly mounted on the bottom ring (11) and is located on the inner side of the side ring (12), the anvil ring cover (2) is fixedly mounted on the top of the anvil ring body, and the anvil ring body comprises a plurality of layer rings (31), all of the layer rings (31) are stacked in sequence in a vertical direction, and between two adjacent layer rings (31), the upper surface of the layer ring (31) located at the bottom is in contact with and abuts against the lower surface of the layer ring (31) located at the top.

2. The anvil ring of a vertical shaft impact crusher according to claim 1, characterized in that: The layer ring (31) comprises a plurality of anvil ring blocks (4) arranged in sequence along the circumferential direction; in each of the layer rings (31), the anvil ring blocks (4) located at the same circumferential position are aligned in the vertical direction, and the vertically aligned anvil ring blocks (4) together form a longitudinally continuous wear-resistant unit (32).

3. The anvil ring of a vertical shaft impact crusher according to claim 2, characterized in that: Inserts (33) are inserted between adjacent wear-resistant units (32); the side wall of the anvil ring block (4) facing one of the adjacent inserts (33) is a first side wall (41), and the first side wall (41) is in contact with and abuts against one of the adjacent inserts (33); The side wall of the anvil ring block (4) facing the other adjacent insert piece (33) is a second side wall (42), and the second side wall (42) is in contact with and abuts against the other adjacent insert piece (33).

4. The anvil ring of a vertical shaft impact crusher according to claim 3, characterized in that: A plurality of positioning pins (5) are vertically arranged between the anvil ring cover (2) and the bottom ring (11), and the positioning pins (5) correspond to the wear-resistant units (32) one by one. All the anvil ring blocks (4) in the wear-resistant units (32) are coaxially provided with pin holes (43) in the vertical direction. The positioning pins (5) penetrate the pin holes (43) of all the anvil ring blocks (4) in the corresponding wear-resistant units (32) and fit with the inner walls of each pin hole (43).

5. The anvil ring of a vertical shaft impact crusher according to claim 4, characterized in that: The anvil ring cover (2) is evenly divided into a plurality of split plates (21) in the circumferential direction, the number of the split plates (21) is half the number of the wear-resistant units (32), each of the split plates (21) covers two adjacent groups of wear-resistant units (32), and the lower surface of the split plate (21) is in contact with and abuts against the upper surfaces of the two adjacent groups of wear-resistant units (32); the bottom of the positioning pin (5) is fixedly connected to the bottom ring (11), the top of the positioning pin (5) passes through the corresponding split plate (21), and is threadedly connected to a nut (51), and the nut (51) presses the upper surface of the split plate (21).

6. The anvil ring of a vertical shaft impact crusher according to claim 4, characterized in that: The anvil ring cover (2) is an integrally formed annular plate body, the top of the positioning pin (5) passes through the anvil ring cover (2), the top of the positioning pin (5) is integrally formed with a limiting screw head (52), the limiting screw head (52) presses the upper surface of the anvil ring cover (2), the bottom ring (11) is provided with an internal threaded hole corresponding to each positioning pin (5), and the bottom of the positioning pin (5) is threadedly connected to the internal threaded hole.

7. The anvil ring of a vertical shaft impact crusher according to claim 6, characterized in that: The first side wall (41) and the second side wall (42) of the anvil ring block (4) are parallel to each other.

8. The anvil ring of a vertical shaft impact crusher according to claim 7, characterized in that: A plurality of pre-installed plates (6) are provided on the inner side wall of the side ring (12) along the circumferential direction, and the pre-installed plates (6) correspond to the wear-resistant units (32) one by one; a protrusion (61) is fixedly provided on the side of the pre-installed plate (6) away from the side ring (12); a groove (44) is vertically penetrated on the side of the anvil ring block (4) close to the side ring (12), and the protrusion (61) extends into all the anvil ring blocks (4) in the corresponding wear-resistant unit (32). 4), the two opposite side walls on the protrusion (61) and the two opposite side walls on the groove (44) are parallel to the first side wall (41); the two opposite side walls on the groove (44) are penetrated by an embedding groove (441) in the vertical direction, and the two opposite side walls on the protrusion (61) are fixedly provided with an embedding piece (62), and the embedding piece (62) extends into the embedding groove (441) and abuts against the inner wall of the embedding groove (441).

9. The anvil ring of a vertical shaft impact crusher according to claim 8, characterized in that: The insert (62) includes a plurality of spring sheets arranged in sequence in the vertical direction, the spring sheets corresponding to the embedding grooves (441) one by one, a protrusion (621) extending into the embedding groove (441) is bent on the spring sheet, and a group of inclined surfaces (622) with opposite inclined directions are provided on the protrusion (621), the notch edge of the embedding groove (441) can abut against one of the inclined surfaces (622) and drive the protrusion (621) to deform in a direction away from the embedding groove (441), and the edge of the groove (44) close to the side ring (12) can abut against the other inclined surface (622) and drive the protrusion (621) to deform in a direction away from the embedding groove (441).

10. The anvil ring of a vertical shaft impact crusher according to claim 8, characterized in that: A connecting block (63) is fixedly provided on one side of the pre-installed plate (6) facing the side ring (12); an insert rod (631) extending vertically downward is fixedly provided at the bottom of the connecting block (63); a plurality of sockets (121) are provided at the top of the side ring (12); the sockets (121) correspond to each other one by one; the insert rod (631) is inserted into the corresponding socket (121) and fits against the inner wall of the socket (121).

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